In 1985, she founded the Association Solidarité Féminine (ASF), a Casablanca-based charity that assists single mothers and victims of abuse.

Chenna was born in Casablanca on 14 August 1941,[1] during the time of the French protectorate, and spent her early childhood in Marrakesh.

Her mother joined her in Casablanca three years later, having divorced her stepfather, and subsequently sold her jewellery to support her daughter.

[2] The ASF trains women in cooking, sewing, accounting, and various other skills, with the aim of reintegrating them (and their children) into society and giving them independence.

[7][8] She also received the Monte Carlo Woman of the Year Award in 2017 in recognition of efforts in "promoting civil rights for a vulnerable social category".